From the Dictionary of American Family Surnames:
English and Scottish: nickname from Middle English king, Old English cyning ‘king’ (originally merely a tribal leader, from Old English cyn(n) ‘tribe’, ‘race’ + the Germanic suffix -ing). The word was already used as a byname before the Norman Conquest, and the nickname was common in the Middle Ages, being used to refer to someone who conducted himself in a kingly manner, or one who had played the part of a king in a pageant, or one who had won the title in a tournament. In other cases it may actually have referred to someone who served in the king’s household…
The specific King family I’m researching can be traced back to the 1750s in Rhode Island before the trail grows cold. Based on the surname, location (New England), and their marriages with, exclusively, members of other English families, it can be safely assumed that the Kings originally came from England. They migrated west to Erie County, Pennsylvania in the early 1800s, settling in the Greenfield, Harborcreek, North East area.
My goal, which will be extremely difficult (and very likely impossible), is to discover their town of origin in England. I’ll be writing about the family and the documents that I find along the way, which will be a fun undertaking regardless of whether I can trace them back to England.